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ÇÁ·ÎÅäÄÝ TCP
ºÐ·ù CGI
»ó¼¼¼³¸í ÇØ´ç IIS À¥ ¼­¹ö¿¡´Â /scripts/nsiislog.dll CGI°¡ ¼³Ä¡µÇ¾î ÀÖ´Ù. ÀÌ CGI´Â ¹öÆÛ ¿À¹öÇ÷οì Ãë¾àÁ¡À» °¡Áö°í Àִµ¥, ¿©±â¿¡ ÀÖ´Â Ãë¾àÁ¡Àº ¿ø°ÝÁöÀÇ °ø°ÝÀÚ°¡ HTTP µ¥¸óÀÇ ±ÇÇÑÀ¸·Î ÀÓÀÇÀÇ Äڵ带 ½ÇÇà½ÃŰ°Å³ª ¼­¹ö¸¦ Å©·¡½¬ ½Ãų ¼ö ÀÖ°Ô ÇØ ÁØ´Ù.
Nsiislog.dll CGI´Â Multicast¿Í Unicast Àü¼Ûµé¿¡ ´ëÇÑ ·Î±ë ±â´ÉÀ» Á¦°øÇÑ´Ù. ÀÌ ±â´ÉÀº Microsoft Windows NT 4.0°ú 2000¿¡ ÀÖ´Â Windows Media Services¸¦ À§ÇÑ ISAPI (Internet Services Application Programming Interface)·Î ±¸ÇöµÇ¾î ÀÖ´Ù. Ãë¾àÁ¡Àº ·Î±ëÀ» À§ÇØ nsiislog.dll ÆÄÀÏ¿¡ ÀÇÇØ »ç¿ëµÇ´Â ¹öÆÛÀÇ Ã¼Å©°áÇÔ¿¡¼­ ±âÀÎÇϰí ÀÖ´Ù. ¼­¹ö·Î Àß Á¶ÀÛµÈ ¿äûÀ» º¸³¾ ¶§, ·Î±ë ÆÄÀÏÀº °¡´ÉÇÑ ±æÀ̺¸´Ù ´õ Å« ¹öÆÛ¸¦ ¾µ·Á°í ÇÒ °ÍÀ̸ç, ÀÌ´Â IIS ¼­ºñ½º°¡ Àå¾Ö¸¦ ÀÏÀ¸Å°°Ô ÇÑ´Ù.

* ¾Ë¸²: ÀÌ Á¡°ËÇ׸ñÀº ÀÌ Ãë¾àÁ¡À» Á¡°ËÇϱâ À§ÇØ ÇØ´ç CGIÀÇ Á¸Àç¿©ºÎ¸¸À» È®ÀÎÇÑ´Ù. µû¶ó¼­ °ÅÁþ ¾ç¼º¹ÝÀÀ(False Positive)À» º¸ÀÏ ¼ö ÀÖ´Ù.

* Âü°í »çÀÌÆ®:
http://www.microsoft.com/technet/security/bulletin/MS03-019.asp
http://www.securityfocus.com/archive/1/323415

* ¿µÇâÀ» ¹Þ´Â Ç÷§Æû:
Microsoft Windows NT 4.0
Microsoft Windows 2000
ÇØ°áÃ¥ ¸¶ÀÌÅ©·Î¼ÒÇÁÆ®ÀÇ ´Ù¿î·Îµå À¥ »çÀÌÆ®¸¦ ÂüÁ¶ÇÏ¿© ½Ã½ºÅÛ¿¡ ÀûÀýÇÑ ÆÐÄ¡¸¦ Àû¿ëÇÏ¿©¾ß ÇÑ´Ù.

Microsoft Windows NT 4.0ÀÇ °æ¿ì:
http://microsoft.com/downloads/details.aspx?FamilyId=8D7E3716-1AA7-4EDC-B084-7D50C8D3C2AB&displaylang=en
Microsoft Windows 2000ÀÇ °æ¿ì:
http://microsoft.com/downloads/details.aspx?FamilyId=9EFA4EBD-2068-4742-917D-A2638688C029&displaylang=en

* ¼³Ä¡ Ç÷§Æû:
o Windows NT 4.0 ÆÐÄ¡´Â Service Pack 6aÀÌ ¼³Ä¡µÈ ½Ã½ºÅÛ¿¡ ¼³Ä¡µÉ ¼ö ÀÖ´Ù.
o Windows 2000 ÆÐÄ¡´Â Windows 2000 Service Pack 2 ȤÀº Service Pack 3ÀÌ ¼³Ä¡µÈ ½Ã½ºÅÛ¿¡ ¼³Ä¡µÉ ¼ö ÀÖ´Ù.

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À©µµ¿ìÁî Ç÷§ÆûµéÀ» À§ÇÑ ÆÐÄ¡µéÀº ¶ÇÇÑ Microsoft Windows Update À¥ »çÀÌÆ®ÀÎ http://windowsupdate.microsoft.com ¿¡¼­µµ ±¸ÇÒ ¼ö ÀÖ´Ù. Windows Update´Â »ç¿ëÁßÀÎ À©µµ¿ìÁîÀÇ ¹öÀüÀ» ÀÚµ¿À¸·Î ã¾Æ³»°í ÀûÀýÇÑ ÆÐÄ¡¸¦ Á¦°øÇØ ÁØ´Ù.
°ü·Ã URL CVE-2003-0227 (CVE)
°ü·Ã URL (SecurityFocus)
°ü·Ã URL (ISS)